The following parameters are available :
<dl>
<dt><b>Table</b>
<dd>The table these permissions should apply to. <p>
<dt><b>Username</b>
<dd>The user to whom the permissions are granted. This user must already
    exist in the <tt>User Permissions</tt> table. <p>
<dt><b>Hosts</b>
<dd>The hosts that the user can access the table from. <p>
<dt><b>Table permissions</b>
<dd>The permissions granted to the user on all columns of the table. <p>
<dt><b>Field permissions</b>
<dd>The maximum permissions that can be granted to this user for any
    column of the table in the <tt>Field Permissions</tt> page. <p>
</dl>

